EP0863367B1 - Steuer- und Regelgerät für einen Gasbrenner - Google Patents

Steuer- und Regelgerät für einen Gasbrenner Download PDF

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Publication number
EP0863367B1
EP0863367B1 EP97120267A EP97120267A EP0863367B1 EP 0863367 B1 EP0863367 B1 EP 0863367B1 EP 97120267 A EP97120267 A EP 97120267A EP 97120267 A EP97120267 A EP 97120267A EP 0863367 B1 EP0863367 B1 EP 0863367B1
Authority
EP
European Patent Office
Prior art keywords
gas
air
gas pressure
control
air fan
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97120267A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0863367A1 (de
Inventor
Eckhard Schwendemann
Harry Kölmel
Rainer Feldmeth
Volker Klumpp
Friedrich Feucht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Building Technologies AG
Original Assignee
Siemens Building Technologies AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Building Technologies AG filed Critical Siemens Building Technologies AG
Publication of EP0863367A1 publication Critical patent/EP0863367A1/de
Application granted granted Critical
Publication of EP0863367B1 publication Critical patent/EP0863367B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F23N1/022—Regulating fuel supply conjointly with air supply using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F23N5/187—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F23N2005/185—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using detectors sensitive to rate of flow of fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • F23N2233/08—Ventilators at the air intake with variable speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/16—Fuel valves variable flow or proportional valves

Definitions

  • the invention relates to a control device for a gas burner according to the preamble of claim 1.
  • Such control devices are used, for example, for commissioning and for controlling the Normal operation of gas-fired heating devices used.
  • heating devices are known in various designs such as boilers and wall heaters. With boilers exist those with fixed power, which are operated in the ON-OFF mode, but also those with variable Power at which the amount of gas to be burned is varied. Thereby exist Fan burners, to which the air required for combustion is supplied by means of a fan, and atmospheric burners without such a fan.
  • JP-A-06 050533 from Patent Abstracts of Japan, Volume 018, No. 283 (M-1613) describes one Combustion control device in which the amount of gas is gradually adjusted to one corresponding amount of hot water is generated. The number of revolutions of the fan becomes corresponding the amount of gas set. The amount of gas flowing through the gas valve is controlled by a Gas pressure sensor measured. The amount of air conveyed by the blower is therefore always that of the Gas valve flowing gas quantity adjusted to prevent abnormal combustion.
  • a control and regulating device is known from European patent application EP 614 046 known for the operation of a gas fan burner, in which the speed of a fan for the Air supply is infinitely variable.
  • EP 614 046 known for the operation of a gas fan burner, in which the speed of a fan for the Air supply is infinitely variable.
  • an additional pressure regulator By means of an additional pressure regulator, one of the Actual air supply adjusted combustion gas supply reached. This is intended for an optimal gas-air ratio can be achieved throughout the entire operating range.
  • the invention has for its object to provide a control device for a gas burner, in which a control of the gas-air ratio is possible without expensive sensors.
  • FIG. 1 shows a control and regulating device 1 for a gas burner 2, which has a fuel valve 3 and a Air blowers 4 are assigned.
  • An external one acts on an input of the control and regulating device 1 Heating circuit controller 5 in such a way that the heating circuit controller 5 to the control and regulating device 1 to cover communicates the burner output required for the heat requirement.
  • this heat demand signal controls the control and regulating device 1, the continuously adjustable fuel valve 3, with which the a fuel line 6 delivered gas is supplied to the combustion chamber.
  • the size of the Heat demand signal thus determines the degree of opening of the fuel valve 3.
  • a gas pressure switch 7 is arranged downstream of the fuel valve 3.
  • the gas pressure switch 7 is designed as a switch which switches from an OFF position to the ON position as soon as the gas volume flow V G being conveyed and thus also the pressure p G in the fuel line 6 exceed a predetermined value V G1 or p G1 .
  • the signal from the gas pressure switch 7 is transmitted to the control and regulating device 1 via a line 8.
  • the control and regulating device 1 now controls the air blower 4 so that it rotates at a first speed D 1 when the gas pressure switch 7 is in the OFF position and that it rotates at a second higher speed D 2 when it rotates the gas pressure switch 7 is in the ON position.
  • Heating devices are only operated in exceptional cases, for example during heating phases at the start of heating, at nominal load. Most of the time they run under reduced load in the so-called partial load range.
  • the gas pressure switch 7 can now advantageously be set such that the value V G1 is somewhat greater than the gas volume flow V G required during the greater part of the operating time. The excess air is then optimal both in part-load operation and at nominal load. Since an amount of air corresponding to the maximum output no longer has to be heated in the partial load range, there is a significant improvement in efficiency.
  • the maximum or maximum gas volume flow required in the partial load range from plant to plant can be different and since the air volume flow is not only dependent on the speed of the air blower 4, but also depends on the air resistance significantly influenced by the exhaust gas chimney, is advantageously the switching point of the gas pressure switch when starting the gas burner 2 7 corresponding to the maximum required in part-load operation or the maximum in part-load operation Gas volume flow set.
  • gas pressure monitors can also be used 7 find application, each different according to a different gas pressure Gas volume flows is set. The speed of the air blower 4 can thus be adjusted in several stages change.
  • a gas pressure switch 7 with several switching points can also be used for this purpose Find application.
  • the functionality of the external heating circuit controller 5 can also be integrated in the control and regulating device 1 his.
EP97120267A 1997-03-05 1997-11-19 Steuer- und Regelgerät für einen Gasbrenner Expired - Lifetime EP0863367B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97103586 1997-03-05
EP97103586 1997-03-05

Publications (2)

Publication Number Publication Date
EP0863367A1 EP0863367A1 (de) 1998-09-09
EP0863367B1 true EP0863367B1 (de) 2002-01-30

Family

ID=8226550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97120267A Expired - Lifetime EP0863367B1 (de) 1997-03-05 1997-11-19 Steuer- und Regelgerät für einen Gasbrenner

Country Status (4)

Country Link
EP (1) EP0863367B1 (un)
AT (1) ATE212703T1 (un)
DE (1) DE59706232D1 (un)
ES (1) ES2171246T3 (un)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7802984B2 (en) 2006-04-07 2010-09-28 Thomas & Betts International, Inc. System and method for combustion-air modulation of a gas-fired heating system
EP2685168B1 (en) * 2012-07-13 2015-10-14 Honeywell Technologies Sarl Method for operating a gas burner
CN114517988B (zh) * 2020-11-17 2023-11-03 云米互联科技(广东)有限公司 燃气热水器的控制方法、燃气热水器及可读存储介质
CN113374912A (zh) * 2021-06-09 2021-09-10 广州市东霸节能科技有限公司 一种商业炉具鼓风和燃气比例调节方法及其装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3801258A (en) * 1972-12-20 1974-04-02 American Air Filter Co Post purge system for gas burners
GB2042191A (en) * 1979-01-18 1980-09-17 United Gas Industries Ltd Air or gas-flow detecting device
JPS58224227A (ja) * 1982-06-21 1983-12-26 Matsushita Electric Ind Co Ltd 燃焼制御装置
JPS58224225A (ja) * 1982-06-21 1983-12-26 Matsushita Electric Ind Co Ltd 燃焼制御装置
US4688547A (en) * 1986-07-25 1987-08-25 Carrier Corporation Method for providing variable output gas-fired furnace with a constant temperature rise and efficiency
JPH0650533A (ja) * 1992-07-31 1994-02-22 Noritz Corp 燃焼制御装置
DE9310451U1 (de) 1993-03-05 1994-06-30 Landis & Gyr Business Support Steuer- bzw. Regeleinrichtung für Gas-Feuerungsautomaten von Heizungsanlagen

Also Published As

Publication number Publication date
DE59706232D1 (de) 2002-03-14
EP0863367A1 (de) 1998-09-09
ES2171246T3 (es) 2002-09-01
ATE212703T1 (de) 2002-02-15

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